Brother DCP-L2531DW, Online User'S Manual, Page: 502 / 658

Home > Troubleshooting > Telephone and Fax Problems > Set Telephone Line Compatibility for
Interference and VoIP Systems
Set Telephone Line Compatibility for Interference and VoIP Systems
Related Models : MFC-L2710DW/MFC-L2713DW/MFC-L2715DW/MFC-L2716DW/MFC-L2730DW/
MFC-L2750DW/MFC-L2751DW/MFC-L2770DW/MFC-L2771DW
Problems sending and receiving faxes due to possible interference on the telephone line may be solved by
reducing the modem speed to minimise errors in fax transmission. If you are using a Voice over IP (VoIP)
service, Brother recommends changing the compatibility to Basic (for VoIP).
• VoIP is a type of phone system that uses an Internet connection, rather than a traditional phone line.
• Telephone providers frequently bundle VoIP together with Internet and cable services.
• Brother does not recommend the use of a VoIP line. VoIP limitations in general can cause some
functions of the fax machine not to work correctly.
>> MFC-L2710DW/MFC-L2713DW/MFC-L2715DW/MFC-L2716DW
>> MFC-L2730DW/MFC-L2750DW/MFC-L2751DW/MFC-L2770DW/MFC-L2771DW
MFC-L2710DW/MFC-L2713DW/MFC-L2715DW/MFC-L2716DW
1. Press Menu .
2. Press
a
or
b
to display the
[Initial Setup]
option, and then press OK .
3. Press
a
or
b
to display the
[Compatibility]
option, and then press OK .
4. Press
a
or
b
to display the
[High]
,
[Normal]
, or
[Basic(for VoIP)]
option, and then press OK .
Option Description
High
Select
High
to set the modem speed at 33600 bps.
Normal
Select
Normal
to set the modem speed at 14400 bps.
Basic(for
VoIP)
Select
Basic(for VoIP)
to reduce the modem speed to 9600 bps and turn off Error
Correction Mode (ECM). Unless interference is a recurring problem on your telephone
line, you may prefer to use it only when needed.
To improve compatibility with most VoIP services, Brother recommends changing the
compatibility setting to
Basic(for VoIP)
.
5. Press Stop/Exit .
MFC-L2730DW/MFC-L2750DW/MFC-L2751DW/MFC-L2770DW/MFC-L2771DW
1. Press
[Settings]
>
[All Settings]
>
[Initial Setup]
>
[Compatibility]
.
2. Press
[High]
,
[Normal]
or
[Basic(for VoIP)]
.
Option Description
High
Select
High
to set the modem speed at 33600 bps.
Normal
Select
Normal
to set the modem speed at 14400 bps.
Basic(for
VoIP)
Select
Basic(for VoIP)
to reduce the modem speed to 9600 bps and turn off Error
Correction Mode (ECM). Unless interference is a recurring problem on your telephone
line, you may prefer to use it only when needed.
To improve compatibility with most VoIP services, Brother recommends changing the
compatibility setting to
Basic(for VoIP)
.
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